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(parent: 3c5820c) | patch
block: don't assume device has a request list backing in nr_requests store
authorJens Axboe <jens.axboe@oracle.com>
Fri, 11 Sep 2009 20:44:29 +0000 (22:44 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Mon, 14 Sep 2009 06:24:53 +0000 (08:24 +0200)
commitb8a9ae779f2c7049071034661e09cb7e1e82250c
treee7063b668cc68f4337f1d6545e71d1f881d57e21tree | snapshot
parent3c5820c743479285ce2678fd3c12b1fd39fe998fcommit | diff
block: don't assume device has a request list backing in nr_requests store

Stacked devices do not. For now, just error out with -EINVAL. Later
we could make the limit apply on stacked devices too, for throttling
reasons.

This fixes

5a54cd13353bb3b88887604e2c980aa01e314309

and should go into 2.6.31 stable as well.

Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/blk-sysfs.c diff | blob | history
Domain: System / Uncategorized;